Sanyo SGP-E70J2GU2 User Manual page 83

Design
Bolt span
S hor t direction(l
L on g direction(l
Actual strength of the foundation bolts
S hort term allowable tensile stress(f
S hort term allowable shear stress (f
Pull out load on one bolt
Shor t direction(R
L ong direction(R
Foundation bolt shear stress(
Foundation bolt tensile stress
11
Shor t direction(
L ong direction(
Allowable tensile stress in a bolt subject to simultaneous tensile and shear stress(f
12
3
Judgment
Tensile load
S ho rt direction if R
L o ng direction if R
Shear stress
τ
if < f
s
Tens ile stress
s ho rt direction if
L o ng direction if
7. Center of gravity position and earthquake resistant design
)
l =
1 1
)
l =
2 2
)
f =
t t
)
f =
s s
)
R
b1 b1
)
R
b2 b2
τ τ
)
=
δ δ
)
=
1 1
δ δ
) =
2 2
f =1.4 f
ts
<T OK
b1 a
<T OK
b2 a
OK
δ
< f
1 t
OK
δ
< f
1 ts
δ
< f
2 t
OK
δ
< f
2 ts
1,000 mm ...........70, 90 type
120, 150, 190 type
1,060 mm ...........70, 90 type
120, 150, 190 type
2
176 N/mm ... for SS400 f
2
99 N/mm ... for SS400 f
F h –(W - F
H G
=
l n
1
h
F - ( W -F
H G
=
l n
2
F
H
= 15.6 N/mm
N A
R
b1
= 14.3
A
R
b2 = 13.0 N/mm
A
τ
-1.6 = 221.4 N/mm
t
R = 1,614 < T = 11,760
b1 a
R = 1,473 < T = 11,760
b2 a
τ
= 15.6 < f =
s
< f
δ
= 14.3
1
< f
< f
δ
= 13.0
2
< f
D - 39
1,000
1,000
1,060
1,060
:176
t
:132×0.75
s6
)
l
V G1
= 1,614 N
1
)
l
V G2
= 1,473 N
2
2
2
N/mm
2
)
ts
2
99
= 176
t
= 221.4
ts
= 176
t
= 221.4
ts